<template>
  <view class="cart-container" v-if="cart.length !== 0">
    <!-- 收货地址组件 -->
    <my-address></my-address>
    <view class="cart-title">
      <uni-icons type="shop" size="18"></uni-icons>
      <text class="cart-title-text">购物车</text>
    </view>
    
   <uni-swipe-action>
      <block v-for="(goods, i) in cart" :key="i">
        <uni-swipe-action-item
          :options="options"
          @click="swipeActionClickHandler(goods)">
          <my-goods
            :goods="goods" 
            :show-radio="true"
            :show-num="true"
            @radio-change="radioChangeHandler"
            @num-change="numberChangeHandler">
          </my-goods>
        </uni-swipe-action-item>
      </block>
    </uni-swipe-action>
    
    <!-- 使用自定义的结算组件 -->
    <my-settle></my-settle>
  </view>
  <view class="empty-cart" v-else>
    <image src="/static/cart-null.png" class="empty-img" mode="widthFix"></image>
    <text class="tip-text">空空如也~</text>
  </view>
</template>

<script>
  import badgeMix from '@/mixins/tabbar-badge.js'
  import { mapState, mapMutations } from 'vuex'
  export default {
    mixins: [badgeMix],
    computed:{
      ...mapState('m_cart', ['cart'])
    },
    data() {
      return {
        options:[{
          text: '删除',
          style: {
            backgroundColor: '#c00000'
          }
        }]
      };
    },
    methods:{
      ...mapMutations(
        'm_cart', 
        ['updateGoodsState', 'updateGoodsCount', 'removeGoodsById']),
      radioChangeHandler(e){
        // console.log(e)
        this.updateGoodsState(e)
      },
      numberChangeHandler(e){
        // console.log(e)
        this.updateGoodsCount(e)
      },
      swipeActionClickHandler(goods){
        this.removeGoodsById(goods.goods_id)
      }
    }
  }
</script>

<style lang="scss">
  .cart-container{
    padding-bottom: 50px;
  }
  .cart-title {
    height: 40px;
    display: flex;
    align-items: center;
    padding-left: 5px;
    border-bottom: 1px solid #efefef;

    .cart-title-text {
      font-size: 14px;
      margin-left: 10px;
    }
  }
  .empty-cart{
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 150px;
    .empty-img{
      width: 270px;
      // height: 90px;
    }
    .tip-text{
      font-size: 12px;
      color: gray;
      margin-top: 15px;
    }
  }
</style>
